Uprighting-lathe



(No Model.) Y -3 sheetssheet 1.

D. H. CHURCH.

UPRIGHTING LATHE.

No. 486,609. Patented Nov. 22', 1892.

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(No Model.) 3 Sheets-Sheet 2.

a D. H. CHURCH.

UPRIGHTING LATHB.

Patented Nov. 22, 1892.'

(No Model.) 3 Sheets-Sheet 3.

D. H. CHURCH.

UPRIGHTING LATHE.

No. 486,609. Patented Nov. l 22, 1892.

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UNITED STATES PATENT CEFICE.

DUANE CHURCH, OF `VVALTHAM, MASSACHUSETTS.

UPRIGHTING-LATH E.

SPECIFICATION forming part of Letters Patent No. 486,609, dated November22, 1892.l i

Application tiled March 1, 1892.v Serial No. 423,412. (No model.)

pivots and bring the holes on each side ofthe frame 1n exact alignment,to provide a caliperv device for gaging the size of the pivot-holes tocorrespond with the respective shafts for Which they are intended', andalso to provide a means for boring the holes for one shaft in both sidesof the frame at the same time, said holes being of a size to exactly tthe pivots of said shaft.

The invention consists in certain features of novelty more particularlypointed out in the claims, beingfrst describedwith reference to theaccompanying drawings, in which- Figure 1 is a front elevation, partly1in section, of a machine constructed according to my invention. Fig. 2is a plan View of the same. Fig. 3 is an end elevation. Fig. 4 is detailof the tool-adjusting rod, showing the springs which hold it byfrictional contact within the tool-carrying sleeve.

The machine consists of a frame constituting the bed 1, legs 2 3, andbase 4. Mounted in this frame beneath the bed 1, journaledin the legs 23, is the main shaft 5, deriving its motion through worm 6 and gear 7,Fig. 1. This shaft carries the cams 8 9, which operate to feed thecutting-tools to their work through the medium of levers 12 12, havingtheir fulcrum in the bed 1 of the frame. Interposed between the legs 2 3and levers 12 12 are springs 10 10', which act in opposition to cams 89.and return levers 12 12 to position when released by said cams.

Supported on the bed l to the left is a standard 13, carrying a hollowlive-spindle 14, to which rotary motion is imparted by pulley 15. At theeXtreme right or inner end the spindle 14 is provided withaface-plate16, adapted to receive and hold the work to be operated upon. lVithinthe spindle 14 is a tubular cutterholding spindle 17, which carries atone end the tool-holder 18. At the other end the cutter-holding spindle17 is provided with a sliding dog 19, which holds it from partaking ofthe rotary motion of the spindle 14, but allows free longitudinalmovement within said spindle 14 by reason of the dog 19 sliding upon apin 20, projecting from the standard 13. Within the cutter-holdingspindle 17 is is placed the tool-operating rod 21, formed on its innerend with an inclined face 22, which by a longitudinal movement of saidrod 21 acts upon the rear of the tool-holder 18 to throw the tool 1b"more or less out of the axial line of spindle 14, according to the sizeof hole it is desired to make. This longitudinal movement of rod 21 isaccomplished by sliding bar 23, operating through handlever 24 upon thelower end 25 of lever 26, fulcrumed at 27, the upper end 28 of whichacts upon said rod 21 to thrust it inward. l/Vhen thrust into place, therod 21 is held by springs 2l', which expand against the cutterholdingspindle 17 and act to hold said rod to any position it may be set bylever 26. (See Fig. 4.) Rod 21 is held from rotating within thecutter-holding spindle 17 and allowed free longitudinal movement by pin2l and slot 21'". Rod 21 is withdrawn from cutter-holding spindle 17 bylever l2 operating upon collar 29.

Supported by bed l is a post 30, carrying au adjustable stop-screw 3 l,which limits (by contact with the dog 19) the withdrawal of thetool-carrying cutter-holding spindle 17, which is Withdrawn by spring 32when released by lever 12.

Projecting from standard 13 is a slotted plate 33 for receiving andsupporting the shaft for which the hole is to be bored in the frameworkof the watch, while the caliper device is setting the tool 16 toposition for cutting the hole of the proper size.

rlhe caliper' device consists of a stationary and a movable jaw, thestationary jaw 34 projecting from standard 13 directly under and inline, or nearly so, with the slotted plate 33. The movable jaw 35 of thecaliper is carried by the sliding rod 23, which is supported in brackets23', attached to the bed l.

The standard 13 and other parts supported by the bed 1 to the right ofthe machine are IOO e asegoe exact duplicates and operate in exactly thesame manner as those above described, the hollow spindle 11 and itsnecessary parts being removed, as they operate only for holding androtating the work. Similar reference-letters have consequently beenplaced upon the corresponding parts to the right of the machine, therebeing no description neoessary.

Any suitable shipping device may be einployed for stopping the machinebetween the successive operations` such as a pin 37 on collar 38,operating to trip lever 39 for shifting the belt.

The operation of the machine is as follows: The framework of the watchis clamped to the face-plate 16. The shaft for which the holes are to bedrilled is first placed in the plate 33 to the left of the machine,bringing the pivot in line to be operated upon by the calipers. Theoperator then moves bar 23 to the left and clamps the pivot between thej-aws 34 35 of the calipers. This movement of bar 23 operates lever 26and thrusts in rod 21, which adjusts tool 16 to a position more or lesseccentric to the axial line of the spindle 14, according to the diameterof the pivot in the calipers. This adjustment places the tool 16 in aposition for cutting a hole of exactly the size corresponding to thepivot in the calipers, and springs 21 hold rod 2l in the position set bythe pivot. The operator now removes the shaft from the calipers,reverses it, and places the pivot at the opposite end in the plai'e33atthe rightof the machine, which brings the pivotin line to be operatedon by the calipers at the right of the machine. Bar 23 is now moved tothe right and the jaws St 35 to the right clamp the pivot, and the toolto the right of the machine is adjusted to proper place in the sainemanner as was tool 16. The tools are now in proper position for cuttingthe holes for the pivots of this particular Shaft.

have completed their work and the loweri ends of the levers 12 12 areresting upon tlie highest part of the cams 8 9, and from thisi point asthe shaft 5 continues to turn the cams S 9 release the levers 12 12 andallow `springs 10 10 to act to return rsaid levers to first position,which takes place when the shaft 5 has completed the revolution. Thisreturn of levers 12 12 releases the tool-carrying cutter-holding spindle17 Vand `allows The machine is now put in motion.` Pulley 15 revolvesspindle 14 and face-plate springs 32 to withdraw said sleeves until thedogs 19 come in contact with stop-screws 31, at which point thedrilling-tools reach first position, and the machinel is ready to repeatthe operation. At this point pin 37, carried by collar 38 on main shaft5, trips lever 39 and shifts the driving-belt to stop the machine forenabling the operator to remove or adjust the work on the face-plate.

I believe it to be new in uprighting-lathes to provide a hollow spindlewith a cutter movable laterally within the spindle and means locatedwithin the spindle for controlling the lateral position of said spindle,and thereby causing it to cut a hole of any desired size, the size ofthe hole depending upon the distance to which the cutter is adjustedfrom the axial line of the spindle. Hence I do not limit myself to themeans here shown for adjusting the cutter-holder laterally.

I claim" 1. In an uprighting-lathe, the combination of two`cutter-holding spindles located in line with and facing each other andprovided with laterally-adj ustable cutters at their adjacent ends,means for moving said spindles simultaneously endivise in oppositedirc'ctions, and a live-spindle inclosing one of said Cutter-holdingspindles and provided with a work-holder adapted to hold and rotate apiece of work between said cutters, as set forth.

2. In an uprightiiig-lathe, the combination of a cutter-holding spindleprovided at one end with a laterally-adj ustable cutter, means formoving said spindle endwise to present its cutter to a piece ot' work,and a rotating hollow spindle iiiclosing the cutter-holding spindle andprovided with a work-holder arranged to hold and rotate the work inposition to receive the action of the cutter, as set forth.

3. In an uprigliting-lathe, the combination, with a rotary hollowspindle, of acutter-holding spindle located within said spindle andprovided with a laterally-movable cutterholder, means for moving saidcutter-holding spindle lengthwise of the lrotary spindle, an adjustingdevice engaged with the cutterholder and adapted to move the samelaterally to vary its position relatively to the axial line of therotary spindle, a caliper device,

and connections between it and theadjusting device whereby the cuttermay be adjusted, as setforth.

Iu testimony whereof I have signed my naine to this specification, vinthe presence of two subscribing witnesses, this 31st day of Oct-ober, A.D. 1891.

DUANE I-I. CHURCH. Witnesses:

E. A. MARSH, A. D. HARRISON.

